ITMI20020161A0 - ACTIVE FILTER - Google Patents
ACTIVE FILTERInfo
- Publication number
- ITMI20020161A0 ITMI20020161A0 IT2002MI000161A ITMI20020161A ITMI20020161A0 IT MI20020161 A0 ITMI20020161 A0 IT MI20020161A0 IT 2002MI000161 A IT2002MI000161 A IT 2002MI000161A IT MI20020161 A ITMI20020161 A IT MI20020161A IT MI20020161 A0 ITMI20020161 A0 IT MI20020161A0
- Authority
- IT
- Italy
- Prior art keywords
- active filter
- filter
- active
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
- H03H11/1252—Two integrator-loop-filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/04—Frequency selective two-port networks
- H03H11/12—Frequency selective two-port networks using amplifiers with feedback
- H03H11/1217—Frequency selective two-port networks using amplifiers with feedback using a plurality of operational amplifiers
- H03H11/1234—Modifications to reduce detrimental influences of amplifier imperfections, e.g. limited gain-bandwith product, limited input impedance
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2002MI000161A ITMI20020161A1 (en) | 2002-01-31 | 2002-01-31 | ACTIVE FILTER |
PCT/IT2002/000820 WO2003065578A1 (en) | 2002-01-31 | 2002-12-23 | An active filter |
EP02806663A EP1470640A1 (en) | 2002-01-31 | 2002-12-23 | An active filter |
US10/502,908 US7038531B2 (en) | 2002-01-31 | 2002-12-23 | Active filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2002MI000161A ITMI20020161A1 (en) | 2002-01-31 | 2002-01-31 | ACTIVE FILTER |
Publications (2)
Publication Number | Publication Date |
---|---|
ITMI20020161A0 true ITMI20020161A0 (en) | 2002-01-31 |
ITMI20020161A1 ITMI20020161A1 (en) | 2003-07-31 |
Family
ID=11449033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2002MI000161A ITMI20020161A1 (en) | 2002-01-31 | 2002-01-31 | ACTIVE FILTER |
Country Status (4)
Country | Link |
---|---|
US (1) | US7038531B2 (en) |
EP (1) | EP1470640A1 (en) |
IT (1) | ITMI20020161A1 (en) |
WO (1) | WO2003065578A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080111607A1 (en) * | 2006-11-10 | 2008-05-15 | Hart Robert T | Amplitude-linear differential phase shift circuit |
TWI348826B (en) * | 2008-01-28 | 2011-09-11 | Prolific Technology Inc | Filter and filtering method |
US8120417B2 (en) * | 2009-07-20 | 2012-02-21 | Texas Instruments Incorporated | Transfer-function control in an active filter |
US8013672B2 (en) * | 2010-01-06 | 2011-09-06 | Hong Kong Applied Science and Technology Research Institute Company Limited | Programmable gain amplifier and embedded filter |
US8970292B2 (en) | 2012-02-01 | 2015-03-03 | Texas Instruments Incorporated | Universal filter implementing second-order transfer function |
WO2016154444A1 (en) * | 2015-03-25 | 2016-09-29 | Sunpower Corporation | Converter topologies and control |
US9954462B2 (en) | 2016-06-30 | 2018-04-24 | Sunpower Corporation | Converter topologies and control |
RU2677362C1 (en) * | 2018-03-14 | 2019-01-16 | федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) | Active rc filter |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3696252A (en) * | 1970-11-20 | 1972-10-03 | Motorola Inc | Active filter for selecting and controlling signals |
US3919648A (en) * | 1973-06-15 | 1975-11-11 | Baldwin Co D H | Voltage-controlled filter |
US3999137A (en) * | 1976-01-02 | 1976-12-21 | Stromberg-Carlson Corporation | Low pass active filter apparatus |
US4301419A (en) * | 1980-02-13 | 1981-11-17 | The United States Of America As Represented By The Secretary Of The Army | Parasitic capacitance compensation in CMOS-switched active filter |
US4453132A (en) * | 1982-04-21 | 1984-06-05 | Motorola, Inc. | Active filter |
DE3329195A1 (en) * | 1983-08-12 | 1985-02-28 | Karl Heinz Dr.-Ing. 8500 Nürnberg Feistel | ACTIVE CHAIN FILTER LINK WITH SWITCHABLE BANDWIDTH AND ACTIVE PARALLEL VIBRATION CIRCUIT HERE |
US4975653A (en) * | 1989-08-29 | 1990-12-04 | Delco Electronics Corporation | FM detector using switched capacitor circuits |
IT245400Y1 (en) | 1998-12-02 | 2002-03-20 | Roberto Cavazzoni | COMPONENT REACTION ELECTRONIC FILTER. |
-
2002
- 2002-01-31 IT IT2002MI000161A patent/ITMI20020161A1/en unknown
- 2002-12-23 WO PCT/IT2002/000820 patent/WO2003065578A1/en not_active Application Discontinuation
- 2002-12-23 US US10/502,908 patent/US7038531B2/en not_active Expired - Fee Related
- 2002-12-23 EP EP02806663A patent/EP1470640A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US7038531B2 (en) | 2006-05-02 |
WO2003065578A1 (en) | 2003-08-07 |
US20050116767A1 (en) | 2005-06-02 |
ITMI20020161A1 (en) | 2003-07-31 |
EP1470640A1 (en) | 2004-10-27 |
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